Counterfoil rule note
Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.
An Invoice shall at least have one VAT breakdown group (BG-23).
Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-CO-18/
Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL
Severity note: fatal, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-18.
An invoice must have at least one VAT breakdown group (BG-23). The statement says "shall at least have" and ends with a period. It does not say exactly one. The context is the invoice or the credit note, with spaces around the bar. The published test is exists on the tax subtotal. It is not a count and it is not a calculation.
Add at least one VAT breakdown group (BG-23) on the invoice.
Illustration of the condition in the official statement. Not an example published by the source.
Fails the stated condition. The invoice has no VAT breakdown.
Passes the stated condition. The invoice has one VAT breakdown.
Copied from the source. Not reimplemented on this page.
/ubl:Invoice | /cn:CreditNote
exists(cac:TaxTotal/cac:TaxSubtotal)
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